Question

1. how many protons are found in an atom of sulfur - 32?
2. how many electrons are found in a neutral atom of mercury - 200?
3. what element can be represented by 45 n⁰, 34 p⁺, 34 e⁻
4. what isotope symbol can be represented by, 7p⁺, 7e⁻, 7 n⁰
5. what nuclear symbol can be represented by 40p⁺, 52 n⁰
6. what is the nuclear symbol of a vanadium atom with 25 neutrons?
7. based on the periodic table, what is probably the most common isotope of molybdenum?

Explanation:

Step1: Recall atomic number property

The number of protons in an atom is equal to its atomic number. Sulfur has an atomic number of 16.

Step2: Answer for sulfur - 32

The number of protons in sulfur - 32 is 16.

Step3: Recall electron - proton relationship in neutral atoms

In a neutral atom, the number of electrons is equal to the number of protons. Mercury has an atomic number of 80.

Step4: Answer for mercury - 200

The number of electrons in a neutral atom of mercury - 200 is 80.

Step5: Identify element by proton number

The element with 34 protons is Selenium (Se) as its atomic number is 34.

Step6: Determine isotope symbol

For an atom with 7 protons (atomic number = 7), 7 electrons (neutral atom) and 7 neutrons, the mass number is 7 + 7=14. The element is Nitrogen (N), and the isotope symbol is $^{14}_7N$.

Step7: Find mass number and nuclear symbol

For an atom with 40 protons (atomic number = 40, Zirconium, Zr) and 52 neutrons, the mass number is 40 + 52 = 92. The nuclear symbol is $^{92}_{40}Zr$.

Step8: Find mass number for Vanadium

Vanadium (V) has an atomic number of 23. With 25 neutrons, the mass number is 23+25 = 48. The nuclear symbol is $^{48}_{23}V$.

Step9: Determine most common isotope of Molybdenum

Molybdenum (Mo) has an atomic number of 42. The most common isotope is $^{98}_{42}Mo$.

Answer:

1. 16
2. 80
3. Selenium (Se)
4. $^{14}_7N$
5. $^{92}_{40}Zr$
6. $^{48}_{23}V$
7. $^{98}_{42}Mo$